Romantic anime usually gives you a "perfect love" image. Everything fits right in place. That doesn't quite work in the real world. Basing off your relationship in real life from an anime, thats just not going to happen.

Doubt it.
Usually in romance animes, some fight over one guy/girl.
The girls usually make a fanclub and be agressive on whoever closes into the one they love. At times, guys make a fan club too.
Moreover, when they are fighting over one person, the person might be best friends with the other and results in enemy's in love >.>